See the fourth report by Sir Humphrey Waldock, Yearbook 1965, vol. II, pp. 55-56, document A/CN.4/177 and Add.1 and 2.
Véase el cuarto informe de Sir Humphrey Waldock, Anuario, 1965, vol. II, pág. 59, documento A/CN.4/177 y Add.1 y 2.